Uwell Caliburn KOKO Prime is an upgraded version of the original Uwell Caliburn KOKO, with a series of updates and optimizations in terms of material, performance, and flavor. Equipped with the same compact size as the original Caliburn KOKO, rectangular design, no buttons on the body, and made of lightweight and durable PC+ABS materials. Users can also choose to replace the exterior decorative panels for a personalized experience. Caliburn KOKO Prime has a built-in 690mAh battery with a larger capacity and uses a faster and more convenient Type-C port, which can be fully charged in less than an hour with a 1.6A charging current. Uwell Caliburn KOKO Prime pod kit utilizes a refillable pod cartridge system that pod cartridge has a 2ml capacity and uses a top filling system which is best for reducing leaks. Designed for salt nicotine e-liquids, you'll enjoy smooth and consistent draws. Caliburn KOKO Prime also is compatible with Caliburn G pods and coils, and introduces a new 1.0ohm FeCrAl coil, making it ideal for smokers of all experience levels. A plug-and-play design makes replacing and installing coils a hassle-free process. Exclusive patented Pro-Focs flavor testing technology also brings flavor to new heights.